(x^2+7x+12)(x^2-3x-28)=0

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Solution for (x^2+7x+12)(x^2-3x-28)=0 equation:


Simplifying
(x2 + 7x + 12)(x2 + -3x + -28) = 0

Reorder the terms:
(12 + 7x + x2)(x2 + -3x + -28) = 0

Reorder the terms:
(12 + 7x + x2)(-28 + -3x + x2) = 0

Multiply (12 + 7x + x2) * (-28 + -3x + x2)
(12(-28 + -3x + x2) + 7x * (-28 + -3x + x2) + x2(-28 + -3x + x2)) = 0
((-28 * 12 + -3x * 12 + x2 * 12) + 7x * (-28 + -3x + x2) + x2(-28 + -3x + x2)) = 0
((-336 + -36x + 12x2) + 7x * (-28 + -3x + x2) + x2(-28 + -3x + x2)) = 0
(-336 + -36x + 12x2 + (-28 * 7x + -3x * 7x + x2 * 7x) + x2(-28 + -3x + x2)) = 0
(-336 + -36x + 12x2 + (-196x + -21x2 + 7x3) + x2(-28 + -3x + x2)) = 0
(-336 + -36x + 12x2 + -196x + -21x2 + 7x3 + (-28 * x2 + -3x * x2 + x2 * x2)) = 0
(-336 + -36x + 12x2 + -196x + -21x2 + 7x3 + (-28x2 + -3x3 + x4)) = 0

Reorder the terms:
(-336 + -36x + -196x + 12x2 + -21x2 + -28x2 + 7x3 + -3x3 + x4) = 0

Combine like terms: -36x + -196x = -232x
(-336 + -232x + 12x2 + -21x2 + -28x2 + 7x3 + -3x3 + x4) = 0

Combine like terms: 12x2 + -21x2 = -9x2
(-336 + -232x + -9x2 + -28x2 + 7x3 + -3x3 + x4) = 0

Combine like terms: -9x2 + -28x2 = -37x2
(-336 + -232x + -37x2 + 7x3 + -3x3 + x4) = 0

Combine like terms: 7x3 + -3x3 = 4x3
(-336 + -232x + -37x2 + 4x3 + x4) = 0

Solving
-336 + -232x + -37x2 + 4x3 + x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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